Apple today provided public beta testers with macOS 10.12.5, a new update that's been in developer testing since March 28. macOS Sierra 10.12.5 comes a little over a week after releasing macOS Sierra 10.12.4, which introduced Night Shift for the Mac.

Beta testers who have signed up for Apple's beta testing program will receive the 10.12.5 macOS Sierra beta through the Software Update mechanism in the Mac App Store.

macOS 10
Those who want to be a part of Apple's beta testing program can sign up to participate through the beta testing website, which gives users access to both iOS and macOS Sierra betas. Betas should not be installed on a primary machine due to the potential for instability.

The release notes accompanying the developer beta say the update "improves the stability, compatibility, and security of your Mac."

There's not much to glean from Apple's release notes, so it is not clear what minor feature tweaks or bug fixes might be included in 10.12.5. Nothing notable has been discovered in the developer betas thus far.

Related Forum: macOS Sierra

Top Rated Comments

C DM Avatar
112 months ago
Is this a joke?
"so.... apple has released something. But we don't know what. But we are still making a news out of it. What is new? No idea, sorry, maybe ask some competent folks around....."

Like seriously has this become a newsfeed for simple events, void of any content, meaning or usefulness?
I'm sitting here half laughing, half not knowing what to feel about this. Maybe it's about time to delete this page from my RSS feed.
Why is it a joke? Apple released something new, that's basically the main piece of the news.
Score: 1 Votes (Like | Disagree)
uajafd Avatar
112 months ago
I guess there are no new emoji.
Score: 1 Votes (Like | Disagree)
Mizhou Avatar
112 months ago
Apple Watch Unlock hasn't worked since I upgraded to 10.12.4 :(
Check in the Settings app under "Security & Privacy" that "Allow your Apple watch to unlock your Mac" hasn't been unchecked when you updated macOS to 10.12.4. If it still is checked, then uncheck it and then check it again. https://support.apple.com/en-us/HT206995
Score: 1 Votes (Like | Disagree)
iBungie Avatar
112 months ago
10.3.2 PB as well, didn't see an article on it.
It's all happening at once....

https://www.macrumors.com/2017/03/29/ios-10-3-2-first-public-beta/
Score: 1 Votes (Like | Disagree)

Popular Stories

Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
iOS 26

Apple Releases iOS 26.1 With Liquid Glass Toggle, Slide to Stop Alarm, New Apple Intelligence Languages and More

Monday November 3, 2025 1:11 pm PST by
Apple today released iOS 26.1, the first major update to the iOS 26 operating system that came out in September, iOS 26.1 comes over a month after iOS 26 launched. ‌iOS 26‌.1 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings > General >...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
Early Black Friday Deals 2

The Best Early Black Friday Apple Deals

Sunday November 2, 2025 10:04 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...